Saving changes to .lbl file

I am using loadLbl() to import the information from a .lbl file into the workspace. However, I cannot figure out how to save these changes since it seems like this function is actually making a copy and not making any direct changed to the .lbl file itself.

test = loadLbl('filename.lbl')

[Guillaume]

Is loadLbl part of a toolbox or a function that you've found somewhere on the net?

[John D'Uva]

I apologize, I've been operating under the assumption that this function was built in to MATLAB but I just realized that it's written within the software package that my colleague sent me. I will delete this post and I apologize for wasting your time @Guillaume